Home / 13,094.31-18,069.85-7,126

Finding the Fourth Proportional to 13,094.31, 18,069.85 and 7,126

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Solution

The fourth proportional to 13,094.31, 18,069.85 and 7,126 is: 9,833.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,094.31 : 18,069.85 = 7,126 : x
  2. Step 2: Convert to fraction form
    13,094.31/18,069.85 = 7,126/x
  3. Step 3: Cross multiply
    13,094.31x = 18,069.85 × 7,126
  4. Step 4: Simplify right side
    13,094.31x = 128,765,751.10
  5. Step 5: Solve for x
    x = 128,765,751.10/13,094.31
  6. Step 6: Final answer
    x = 9,833.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.